MRI: Development of A System for Continuously Monitoring Fish Population and Behavior over Continental Shelf-Scales with Ocean Acoustic Waveguide Remote Sensing (OAWRS)

智力价值国际正在申请资金，以开发和建造便携式声源阵列和处理系统，用于大陆架规模的即时成像和对鱼类和海洋生物的持续监测。这项技术已经通过使用不再运行的两艘船系统得到了成功的演示。建议的系统可以从单个固定或移动的船只上部署，以测量开阔的海洋、陆架和湖泊环境中的丰度、种群分布和时空动态。该系统将结合高效和可用的设计，以及从同一艘船同时拖曳低至中频有源阵列和通用接收阵列的能力。拟议的仪器比目前的能力有了很大的进步；PIS表示，拟议的系统是第一个也是唯一一个能够对50公里范围内的海洋生物成像的便携式和拖曳有源源系统。在渔业种群目前因生态系统变化和种群枯竭而受到压力之际，拟议的工具所提供的能力方面的重大进展将使科学和管理工作受益。

Intellectual MeritThe PI is requesting funding to develop and build a portable acoustic source array and handling system for instantaneous continental-shelf-scale imaging and continuous monitoring of fish and marine life. This technique has been successfully demonstrated through the use of a two-vessel system that is no longer in operation. The proposed system can be deployed from a single fixed or mobile vessel to measure abundance, population distributions, and dynamics in time and space in open ocean, shelf, and lake environments. The system will combine an efficient and usable design and the capability for the simultaneous tow of the low-to-mid frequency active source array and a generic receiving array from the same vessel. The proposed instrumentation represents a significant advance over current capabilities; the PIs state that the proposed system represents the first and only portable and towable active source system capable of imaging marine life at 50-km ranges.Broader ImpactsBroader impacts include significant collaborations with fisheries science and management groups nationally (e.g., NMFS) and internationally (e.g,, Peru, Canada, Australia). The significant advance in capabilities offered by the proposed instrumentation will benefit both scientific and management efforts at a time when fisheries stocks are currently being stressed by ecosystem change and stock depletion.